This circuit makes use of a constant current source to control the temperature of a direct current heating element. The integrated circuit must be mounted on a heat sink.
The frequency of the sound emitted by this circuit depends on the light intensity on the sensor....
This circuit is from a thyristor manual from On Semiconductor. It makes use of a PUT and a SCR...
This circuit uses only one NC75Z04 port from ON Semiconductor, but it can be implemented with...